[PATCH v3 10/11] x86/percpu: Remove unused PER_CPU() macro

From: Nick Desaulniers
Date: Mon Jul 20 2020 - 16:50:38 EST


From: Brian Gerst <brgerst@xxxxxxxxx>

Also remove now unused __percpu_mov_op.

Tested-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Acked-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Brian Gerst <brgerst@xxxxxxxxx>
Signed-off-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
---
arch/x86/include/asm/percpu.h | 18 ------------------
1 file changed, 18 deletions(-)

diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index cf2b9c2a241e..a3c33b79fb86 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -4,33 +4,15 @@

#ifdef CONFIG_X86_64
#define __percpu_seg gs
-#define __percpu_mov_op movq
#else
#define __percpu_seg fs
-#define __percpu_mov_op movl
#endif

#ifdef __ASSEMBLY__

-/*
- * PER_CPU finds an address of a per-cpu variable.
- *
- * Args:
- * var - variable name
- * reg - 32bit register
- *
- * The resulting address is stored in the "reg" argument.
- *
- * Example:
- * PER_CPU(cpu_gdt_descr, %ebx)
- */
#ifdef CONFIG_SMP
-#define PER_CPU(var, reg) \
- __percpu_mov_op %__percpu_seg:this_cpu_off, reg; \
- lea var(reg), reg
#define PER_CPU_VAR(var) %__percpu_seg:var
#else /* ! SMP */
-#define PER_CPU(var, reg) __percpu_mov_op $var, reg
#define PER_CPU_VAR(var) var
#endif /* SMP */

--
2.28.0.rc0.105.gf9edc3c819-goog